root@silas:~# cdrecord -v driveropts=burnfree dev=/dev/sr0 /server2/ftp/pub/Linux/Slackware/slackware-current-iso/slackware-current-install1.iso
cdrecord: No write mode specified.
cdrecord: Asuming -sao mode.
cdrecord: If your drive does not accept -sao, try -tao.
cdrecord: Future versions of cdrecord may have different drive dependent defaults.
Cdrecord-ProDVD-ProBD-Clone 2.01.01a37 (i686-pc-linux-gnu) Copyright (C) 1995-2008 J�rg Schilling
TOC Type: 1 = CD-ROM
scsidev: '/dev/sr0'
devname: '/dev/sr0'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Using libscg version 'schily-0.9'.
Driveropts: 'burnfree'
SCSI buffer size: 64512
atapi: 1
Device type    : Removable CD-ROM
Version        : 5
Response Format: 2
Capabilities   :
Vendor_info    : 'ASUS    '
Identifikation : 'DRW-2014L1T     '
Revision       : '1.00'
Device seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM.
Current: CD-RW
Profile: DVD-R/DL sequential recording
Profile: DVD-R/DL layer jump recording
Profile: DVD+R/DL
Profile: DVD+R
Profile: DVD+RW
Profile: DVD-RW sequential recording
Profile: DVD-RW restricted overwrite
Profile: DVD-RAM
Profile: DVD-R sequential recording
Profile: DVD-ROM
Profile: CD-RW (current)
Profile: CD-R
Profile: CD-ROM
Profile: Removable Disk
Using generic SCSI-3/mmc   CD-R/CD-RW driver (mmc_cdr).
Driver flags   : MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Drive buf size : 1484032 = 1449 KB
FIFO size      : 4194304 = 4096 KB
Track 01: data   683 MB
Total size:      785 MB (77:48.94) = 350171 sectors
Lout start:      785 MB (77:50/71) = 350171 sectors
Current Secsize: 2048
ATIP info from disk:
  Indicated writing power: 3
  Reference speed: 6
Disk Is not unrestricted
Disk Is erasable
  Disk sub type: High speed Rewritable (CAV) media (1)
  ATIP start of lead in:  -11745 (97:25/30)
  ATIP start of lead out: 359848 (79:59/73)
  1T speed low:  4 1T speed high: 10
  2T speed low:  4 2T speed high:  0 (reserved val  6)
  power mult factor: 1 5
  recommended erase/write power: 5
  A1 values: 24 1A D8
  A2 values: 26 B2 4A
Disk type:    Phase change
Manuf. index: 40
Manufacturer: INFODISC Technology Co., Ltd.

    Capacity  Blklen/Sparesz.  Format-type  Type
      359848             2048         0x00  Unformated or Blank Media
           0          6550273         0x10  Reserved (0)
           0          6550273         0x11  Reserved (0)
           0          6550273         0x12  Reserved (0)
Blocks total: 359848 Blocks current: 359848 Blocks remaining: 9677
Starting to write CD/DVD/BD at speed 10 in real SAO mode for single session.
Last chance to quit, starting real write    0 seconds. Operation starts.
Waiting for reader process to fill input buffer ... input buffer ready.
BURN-Free is OFF.
Turning BURN-Free on
Performing OPC...
Sending CUE sheet...
cdrecord: CUE sheet not accepted. Retrying with minimum pregapsize = 1.
cdrecord: Input/output error. send_cue_sheet: scsi sendcmd: no error
CDB:  5D 00 00 00 00 00 00 00 20 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 05 00 00 00 00 0A 00 00 00 00 26 00 00 00
Sense Key: 0x5 Illegal Request, Segment 0
Sense Code: 0x26 Qual 0x00 (invalid field in parameter list) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 0.000s timeout 200s
cdrecord: CUE sheet still not accepted. Please try to write in RAW (-raw96r) mode.
cdrecord: Cannot send CUE sheet.
cdrecord: Could not write Lead-in.
Writing  time:    0.080s
BURN-Free was never needed.
cdrecord: fifo had 64 puts and 0 gets.
cdrecord: fifo was 0 times empty and 0 times full, min fill was 100%.